Title :
Frequency-domain differential phase-shift keying (FD-DPSK) of ultra fast laser pulses
Author :
Yang, Weiguo ; Kobayashi, Hisashi ; Warren, Warren S.
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
Frequency-domain differential phase-shift-keying (DPSK) using ultrafast laser pulses has been demonstrated. Spectral coding based on acoustic optical modulator pulse shaping is used for modulation, and the ultrafast pulse characterization based on spectral interferometry is used for demodulation. The encoded differential phase pattern is successfully retrieved after transmission over 4-km dispersion-shifted fiber, which induces substantial nonlinear distortions.
Keywords :
demodulation; differential phase shift keying; high-speed optical techniques; light interferometry; optical fibre communication; optical fibre dispersion; optical modulation; optical pulse shaping; optical transmitters; 4 km; FD-DPSK; acoustic optical modulator pulse shaping; demodulation; differential phase-shift keying; dispersion-shifted fiber transmission; encoded differential phase pattern retrieval; frequency-domain DPSK; frequency-domain differential phase-shift keying; nonlinear distortions; optical modulation; spectral coding; spectral interferometry; ultrafast laser pulses; ultrafast pulse characterization; ultrafast pulse shaping; Acoustic pulses; Differential phase shift keying; Differential quadrature phase shift keying; Fiber lasers; Modulation coding; Optical interferometry; Optical modulation; Optical pulse shaping; Phase shift keying; Pulse modulation;
Journal_Title :
Photonics Technology Letters, IEEE
